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Predicted Effects of the Atmosphere on Turbine-Type Aircraft Engines 470239

A STUDY of the operation of aircraft gas turbine powerplants under various atmospheric conditions shows that trends in performance will not always be similar to the trends noted with reciprocating engines.

High humidity will have a negligible effect on performance, but ingested water will automatically increase power in a turbine engine regulated by speed and combustion-temperature controls without a power-limitation device.